PTN78000WAZT

The PTN78000 is a series of high-efficiency, step-down Integrated Switching Regulators (ISR). It is smaller and lighter than its predecessors, and has either similar or improved electrical performance characteristics. The case-less, double-sided package, also exhibits improved thermal characteristics, and is compatible with TI's roadmap for RoHS and lead-free compliance. Operating from a wide-input voltage range, the PTN78000 provides high-efficiency, step-down voltage conversion for loads of up to 1.5 A. The output voltage is set using a single external resistor. The PTN78000W may be set to any value within the range, 2.5 V to 12.6 V, and the PTN78000H from 11.85 V to 22 V. The output voltage of the PTN78000W can be as little as 2 V lower than the input, allowing operation down to 7 V, with an output voltage of 5 V. The output voltage of the PTN78000H can be as little as 3 V lower than the input, allowing operation down to 15 V, with an output voltage of 12 V. The PTN78000 has undervoltage lockout and an integral on/off inhibit. The modules are suited to a wide variety of general-purpose applications that operate off 12-V, 24-V, or 28-V DC power. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

Applications

• General-Purpose
• Industrial Controls
• HVAC Systems
• Test and Measurement
• Medical Instrumentation
• AC/DC Adaptors
• Vehicles
• Marine

Key features

• 1.5-A Output Current
• Wide-Input Voltage (7 V to 36 V) / (15 V to 36 V) Wide-Output Voltage Adjust (2.5 V to 12.6 V) / (11.85 V to 22 V)
• High Efficiency (Up to 95%)
• On/Off Inhibit
• Undervoltage Lockout
• Output Current Limit
• Overtemperature Shutdown Operating Temperature: -40°C to 85°C
• Surface Mount Package Available